Then formulas (3.4) and (3.7) of [1]} imply that equations
of geodesic lines are:
\(\frac{dx}{ds}=\frac{q_{1}}{\varepsilon _{r}},\text{ }\frac{dy}{ds}=\frac{q_{2}}{\varepsilon _{r}},\text{ }\frac{dz}{ds}=\frac{q_{3}}{\varepsilon _{r}}, \) 
\(\frac{dq_{1}}{ds}=\frac{\partial _{x}\varepsilon _{r}}{2\varepsilon _{r}},\text{ }\frac{dq_{2}}{ds}=\frac{\partial _{y}\varepsilon _{r}}{2\varepsilon _{r}},\text{ }\frac{dq_{3}}{ds}=\frac{\partial _{z}\varepsilon _{r}}{2\varepsilon _{r}},\) 
